tappd: Show compose file in tcb info

tappd/src/config.rs

@@ -15,4 +15,5 @@ pub struct Config {
     pub key_file: String,
     pub public_logs: bool,
     pub public_sysinfo: bool,
+    pub compose_file: String,
 }

tappd/src/rpc_service.rs

@@ -1,6 +1,7 @@
 use std::sync::Arc;
 
 use anyhow::{bail, Context, Result};
+use fs_err as fs;
 use ra_rpc::{CallContext, RpcCall};
 use ra_tls::{
     attestation::QuoteContentType,
@@ -140,6 +141,7 @@ impl WorkerRpc for ExternalRpcHandler {
         let rtmr1 = hex::encode(report.rt_mr1);
         let rtmr2 = hex::encode(report.rt_mr2);
         let rtmr3 = hex::encode(report.rt_mr3);
+        let app_compose = fs::read_to_string(&self.state.config().compose_file).unwrap_or_default();
         let tcb_info = serde_json::to_string_pretty(&json!({
             "rootfs_hash": rootfs_hash,
             "mrtd": mrtd,
@@ -148,6 +150,7 @@ impl WorkerRpc for ExternalRpcHandler {
             "rtmr2": rtmr2,
             "rtmr3": rtmr3,
             "event_log": event_log,
+            "app_compose": app_compose,
         }))
         .unwrap_or_default();
         Ok(WorkerInfo {

tappd/tappd.toml

@@ -11,6 +11,7 @@ cert_file = "/etc/tappd/app-ca.cert"
 key_file = "/etc/tappd/app-ca.key"
 public_logs = false
 public_sysinfo = false
+compose_file = "/tapp/app-compose.json"
 
 [internal]
 address = "unix:/var/run/tappd.sock"